Question about a product called grout boost.

I was at a tile store yesterday and the sales staff recommended a product called grout boost to mix grout with instead of water. She said you do not need to seal the grout later and it provides much better water and stain resistance.

Has anyone used grout boost and is it worth it? Or is it better to use grout mixed with water and then go over with grout sealer.

epoxy or old school grout & sealer are the way to go.
My only caution is if this is your first time grouting ,epoxy requires a little more skill to apply then traditional grout. Depending on the quality of clean up, application,etc with a bad job you can see traces of epoxy on the tile if it's not done properly.Just more attention to detail is needed. Lastly you really need to know what color you want, cause it's tough to go back a re stain, color, or remove etc down the road. It's a permanent deal.
The grout boost stuff from what I read online a year or so ago only makes the grout 25 percent less porous, so it's still susceptible to stain and water penetration. Also I believe the cure time was pretty long, so there was really no advantage that I can see. I would rather use 2 proven methods, then be a field test subject.

I've used the grout additive in place of water and to be honest I couldn't tell whether it did anything or not. But since it came out fine I'd have no problem using again. The stuff I got was cheap and pre-measured for the bag of grout so I figured what the heck. I still sealed the grout afterwards.

I used it, the dumb lady at A\\/AL0|\\| Tile told us it was the greatest stuff on earth, for $25 for a little bottle. I got 2 to cover my kitchen floor. Aside from selling us the worst possible tile in the world, the grout has been cracking, flaking apart, coming up in chunks, and taking all kinds of stains since we put it in about a year ago. They won't honor the warranty since I put it in myself (and yes, I did follow the instructions), so now I have to grind the crappy grout out and replace it.

FYI
I was sold Grout Boost from a salesman at a local big box. A broken waterline in the 2nd story had pretty much wiped out our house. Kitchen cabinets out, sheetrock out etc. We decided to tile the majority of the house. New shower, new floors, new vanity tops, new counter tops etc. I bought $400 of grout boost and gave it to my pro tile setter. He said it was not as easy to apply as normal grout but better than epoxy. It looked great and we were happy. Nothing touched it for two weeks.

It is now 3 months later. As far as I can tell I wasted 400 dollars. Kitchen counter tops take stains like nothing is there. Coffee, grease etc. Today I bought grout sealer and will try to clean and mitigate my stupidity!

It is now 3 months later. As far as I can tell I wasted 400 dollars. Kitchen counter tops take stains like nothing is there. Coffee, grease etc. Today I bought grout sealer and will try to clean and mitigate my stupidity!

At least for the kitchen countertop, remove the old grout and re-grout with an epoxy grout. Otherwise, Imho you are just throwing good money after bad.

Our contractor was talked into using this new product, Grout Boost, by a local big box store. Said it resisted dirt and stain and wouldn't need to be sealed. Sounded great-- but is not true. We used it to regrout unsanded grout in bathrooms-- and to regrout a kitchen floor with the sanded grout boost. It turned the sanded grout white. Called the company and they spouted off a canned reply that it was efflorescence and we should clean with a vinegar and water solution after 10 days. They sounded dismissive. The vinegar solution didn't do anything.

Six months later--It has not resisted stain and dirt at all in the bathrooms nor the kitchen. The grout will need to be sealed to resist dirt and stain. This product is a total waste of money.

I have used the grout boost an have to say I was happy with the product..
It's not an epoxy grout by any means.Nor does it react like a latex additive..It's just different.it chemically enhances the coposition of the grout product itself..They make additives for sanded an unsanded..If you got white spots u wet it to much in the cleaning proccess..I would say It does make the grout harder or more dense..
The biggest problem i have with epoxy grouts are it can be difficult to keep the joints flush.Especially on vertical installations with a non pourus bisque like a porcelain tile..